Maria Paz ‘Pachi’ Ibarra may well be one of the most experienced alpinists in all of Antarctica. The Santiago, Chile-raised climber has over ten first ascents in the Ellsworth Mountains, more than anyone else. A guide for more than 15 years, she first arrived on the continent to survey peaks in the Sentinel Range. She has also summited some of the world’s tallest peaks, including Tibet and China’s Lhotse.